Medium Grey
Tamiya Color XF-20

Tamiya XF-20 »Medium Grey« in the foreground and the lighter grey of an Elastolin Confederate infantryman behind.

Tamiya XF-20 »Medium Grey« desaturated with XF-2 »White«. Tinted with white at a 3:1 ratio, the resulting shade is an excellent match for Humbrol MC4 »British Grey«.